Gasboy 1000 Series Fuel Management System Installation - Manual (Page 56)

Communication Wiring Cables
Page 52 MDE-4344A Series 1000 Fuel Management System Installation Manual · November 2008
• Power - The AC power for the peripheral equipment must be on a separate circuit breaker
(which can be the same breaker used to supply the system power).
• Distance
1-100 Feet RS-232 Direct-connect
101-1500 Feet RS-422 and Gasboy Short Haul Modem required.
Refer to
“Short Haul Modem - RS-422” on page 58 .
• RS-232
Conduit
RS-232 wires over 15 feet must be installed in a metal conduit separate from any AC
wires.
Wire
Cables can be purchased from Gasboy or made by the installer. When making cables, wire
used must be stranded, not solid core.
RS-232
• 22-gauge for use with RS-232D connectors
• 18-gauge for use with the Gasboy RS-232 termination box
• For RS-422 requirements, refer to “Short Haul Modem - RS-422” on page 58 .
• Setup - Instructions for the proper setup of the communication ports can be found in the
Start-up Manual. This setup should be done by the person doing the start-up of the system.
The system power switch must not be turned on prior to the proper setup of these ports.
Cables
The drawings on the opposite page show the pin-to-pin layout of the RS-232 termination box,
the EIA 1:1 cable, and the modem cable.
RS-232 Termination Box
This unit can be purchased from Gasboy and provides the installer with an easy-to-wire
terminal block connected to the proper pins on an RS-232D female connector. The terminal
block will accept 18- or 22-gauge wire.
Figure 5-1: Termination Box - Gasboy Part Number C05769